The hex color #af1e23 is a dark color. The web-safe version is Hex
#993333. A complementary color is
#50E1DC. The grayscale version is
#505050. A 20% lighter version of the original color is
#E25156, and Hex
#7C0000 is the 20% darker color. If the color is saturated by 10%, you get
#B9191F. If the color is desaturated by 10%, the color
#A62328 is obtained.